122312502 has 24 divisors (see below), whose sum is σ = 285396384. Its totient is φ = 37634544.

The previous prime is 122312483. The next prime is 122312507. The reversal of 122312502 is 205213221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261118 + ... + 261585.

It is an arithmetic number, because the mean of its divisors is an integer number (11891516).

Almost surely, 2^122312502 is an apocalyptic number.

122312502 is an abundant number, since it is smaller than the sum of its proper divisors (163083882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122312502 is a wasteful number, since it uses less digits than its factorization.

122312502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522724 (or 522721 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 122312502 is about 11059.4982707173. The cubic root of 122312502 is about 496.3906776096.

Adding to 122312502 its reverse (205213221), we get a palindrome (327525723).

The spelling of 122312502 in words is "one hundred twenty-two million, three hundred twelve thousand, five hundred two".